foo.c: In function 'main':
foo.c:7:16: warning: right-hand operand of comma expression has no effect [-Wunused-value]
    7 |         for(i=0,i>=0,i++)
      |                ^
foo.c:7:25: error: expected ';' before ')' token
    7 |         for(i=0,i>=0,i++)
      |                         ^
      |                         ;
foo.c:7:25: error: expected expression before ')' token
foo.c:9:20: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
    9 |                 if(x=0)
      |                    ^

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